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Local repairs

A crack, a displaced joint or a leak in one spot? Then the whole pipe does not need replacing. We repair locally, from the inside.

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Technicians preparing stainless steel sleeves next to the van

When is a local repair the right choice?

Is the pipe largely in good condition but damaged in one place? Then a local repair is the fastest and most cost-effective solution.

Cracks, fractures and holes in the pipe wall
Displaced or open joints
Groundwater infiltration or wastewater exfiltration
Leaking house connections or gully connections
Local deformation or missing pipe sections

Our techniques

Local repair Partial liner

A short resin-impregnated mat is brought to the damage via the manhole and pressed against the pipe wall until it cures.

Stainless steel sleeves Quick-Lock and Link-Pipe

Stainless steel sleeves placed against the pipe wall in exactly the right spot, guided by camera. We work with two types. More about stainless steel sleeves.

Injection PU resin

We seal leaking joints and connections with water-reactive PU resin. More about injection.

Before and after

Repaired locally, the rest stays in service

Pipe with a damaged joint and deposits — Before

The same pipe after installing a stainless steel sleeve — After

Stainless steel sleeves

Two types of stainless steel sleeves

A fast, durable repair of a damaged pipe, from the inside. Depending on the pipe and the damage, we choose the most suitable type.

Quick-Lock Stainless steel with EPDM seal

A stainless steel sleeve with an EPDM rubber seal. The sleeve is expanded and locked in exactly the right spot, pressing the rubber watertight against the pipe wall.

Link-Pipe Available exclusively through C4Sewer

An expandable sleeve in SST-316 stainless steel with a polyurethane outer coating. Higher steel grades are available for salt water and aggressive environments. A compressed-air balloon presses the sleeve against the pipe wall. Once the balloon is removed, a watertight, seamless repair remains.

How long does it last?

According to the manufacturer, a Link-Pipe sleeve lasts 50 to 100 years in domestic wastewater.

What does a sleeve repair?

Longitudinal and circumferential cracks
Partial and complete fractures
Deformed pipes
Leaking and displaced joints
Root intrusion through joints
Missing pipe sections

Diagram: stainless steel sleeves repair cracks, holes, leaks, root intrusion, displaced joints and leaking connections under a loaded road — Where a stainless steel sleeve is used: from cracks and leaks to root intrusion and displaced joints. (Diagram labels are in Dutch.)

How we work

From first question to handover

Site visit and diagnosis

We assess the situation on site and review camera footage and measurements.
Advice and quotation

A clear proposal with the best-suited technique, schedule and price.
Execution

Our own crew carries out the work in line with confined-space safety rules.
Handover

Inspection of the result and a photo report of the work carried out.